The following sites allow execution of some languages from a web browser:
| Site | Languages | Notes |
|---|---|---|
| code.world | Haskell | Educational programming environment by Google. |
| easylang.online | EasyLang | IDE, Tutorials. |
| The Go Play Space | Go | Playground with Doc-Ref, Turtle- & Nightmode. |
| The Go Playground | Go | The official Golang playground. |
| Groovy Playground | Groovy | Load save via GitHub/Gist. |
| Groovy web console | Groovy | Save and share. Runs on Google Cloud Engine. |
| Repl.it | Basic, C, C++, Java, JavaScript, PHP, Ruby, … | |
| Ideone | Bash, C, C++, Go, Haskell, Java, Pascal, Rust, … | |
| Gambas Playground | Gambas | CLI only. |
| ScalaFiddle | Scala.js | Transpiler for Scala to JavaScript. |
| Scastie | Scastie | Scala on a JVM. Only supports static input. |
| TIO | > 500 languages | Only supports static input - no interactivity |